CN104518630A - Dc motor - Google Patents
Dc motor Download PDFInfo
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- CN104518630A CN104518630A CN201410026076.1A CN201410026076A CN104518630A CN 104518630 A CN104518630 A CN 104518630A CN 201410026076 A CN201410026076 A CN 201410026076A CN 104518630 A CN104518630 A CN 104518630A
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- 239000003990 capacitor Substances 0.000 claims abstract description 73
- 239000002184 metal Substances 0.000 claims abstract description 41
- 229910052751 metal Inorganic materials 0.000 claims abstract description 41
- 238000012360 testing method Methods 0.000 claims abstract description 19
- 239000012212 insulator Substances 0.000 claims abstract description 4
- 238000004804 winding Methods 0.000 claims description 40
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 238000003780 insertion Methods 0.000 claims description 7
- 230000037431 insertion Effects 0.000 claims description 7
- 239000004020 conductor Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 description 13
- 230000014759 maintenance of location Effects 0.000 description 9
- 238000005096 rolling process Methods 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 238000009413 insulation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 229910000859 α-Fe Inorganic materials 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
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- 230000002950 deficient Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Abstract
The invention provides a DC motor capable of easily and high reliably performing an insulating voltage-withstanding tests of a DC motor without the shape of a vehicle-mounted motor becoming larger. In the DC motor (100), an electric brush plate (12) of an insulator, which is equipped with a brush holder (56) which holds an electric brush (21), and a conductive metal cover body (18) combined with the electric brush plate and covering an open part side of a yoke (12) are arranged. One side of the electric brush plate, which is opposite to an armature, is provided with a choking coil, and a groove (75c) arranged on the side where the electric brush plate and the metal cover body are combined is internally provided with a capacitor (50). The capacitor is such configured that a lead at one side is electrically connected with the choking coil, and a lead at the other side can be electrically connected with a metal plate after the insulating voltage-withstanding test.
Description
Technical field
The present invention relates to a kind of DC motor, particularly one is used for vehicle, and the DC motor of the subsidiary brush (brush) be applicable to.
Background technology
The example of existing DC motor is as described in patent documentation 1 to patent documentation 3.In the DC motor described in these publications, the stator (stator) in the metal yoke yoke (yoke) being formed as bottomed cylindrical with permanent magnet is kept, configure the rotor (rotor) of the coiled pipe type producing rotating magnetic field opposedly with this stator, the yoke of bottomed cylindrical is abutted with flat cover part by brush carrier (brush holder).
In more detail, in the electric rotating machine described in patent documentation 1, the opening of the yoke of electric motor is blocked by the brush carrier of power supply unit.On brush carrier, shaping by injection moulding (outsert), fix a pair power supply terminal be connected with brush.Input side fixed leg on brush carrier and form predetermined distance between the fixed leg of brush side, substitutes power supply terminal, can install choking-winding (choke coil) at brush lateral terminal and input side terminal centre.
In addition, in the motor described in patent documentation 2, except being configured in except the carbon brush of brush carrier with 90 degree of intervals, in order to tackle electrical noise, ring-type ferrite core and each 2 of capacitor is also configured with.Then, the conductor part exposed according to the distribution of only powering to carbon brush is positioned at the mode of the central part of ferrite iron core, and brush carrier positions.
Further, in the micro-machine described in patent documentation 3, at the peristome of covering shell (case), jointly form the inner face side of the casing cover of the cylindrical vessel of sealed shape with shell, form 3 spaces, at each space storage chip capacitor.Thereby, it is possible to be connected in parallel the 3rd capacitor with 2 capacitors of connecting, realize the reduction of the electrical noise of low-frequency band.
At first technical literature
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 2012-138994 publication
Patent documentation 2: Japanese Unexamined Patent Publication 2012-70512 publication
Patent documentation 3: No. W001/39354th, International Publication
The problem that invention will solve
In the DC motor with brush, there is the noise that brush in order to reduce motor produces, and in the inside of motor or outside, capacitor is set as electric capacity or arrange the situation of choking-winding as inductance.Then, if form LC filter circuit by capacitor and choking-winding, then effectively can reduce particularly high-frequency noise, this is known.
But in vehicle-mounted DC motor, in order to remove the baneful influence to other vehicle-mounted electric components, the feasible value of the noise produced in brush is by strict regulations.This specification is called EMC (electric magnetic compatibility: Electro Magnetic Compatibility), such as IEC specification is by international regulation.
In above-mentioned patent documentation 1, no matter whether there is the element that the noise of motor generation is reduced, in order to make motor miniaturization, thus on brush carrier, using the distance between input side fixed leg and brush side fixed leg as predetermined distance, optionally power supply terminal and choking-winding are installed.But, in this patent documentation 1, do not have to consider when installing capacitor to tackle the noise that produces in brush, based on the impact of dielectric voltage withstand test on capacitor of motor.
In addition, in patent documentation 2, as electrical noise countermeasure, ferrite iron core and capacitor is used, by these arrangements of components at brush carrier upper surface.In addition, in patent documentation 3, at brush carrier upper surface configuration capacitor.But, in these patent documentations 2,3, do not consider due to the dielectric voltage withstand test of motor yet and have impact on capacitor.
Carry out the dielectric voltage withstand test of DC motor if keep when being connected to capacitor, even if then in order to also can produce the electric current by capacitor when load voltage is little, there is the situation of the confusion produced between insulation breakdown electric current.In addition, if load voltage is set to large voltage, then can worries to exceed the withstand voltage of capacitor and insulation breakdown is carried out to capacitor.Therefore, in the dielectric voltage withstand test of motor, although preferably remove the state of capacitor, after Capacitor banks is incorporated in brush carrier, be difficult to remove capacitor to perform dielectric voltage withstand test.In order to remove this defect, if again capacitor is installed to brush carrier after dielectric voltage withstand test, then cause the increase of installation steps.
Summary of the invention
The present invention in view of above-mentioned prior art defect and make, its object is to, when not making the shape of vehicle-mounted DC motor become large, can easily and carry out with high reliability DC motor dielectric voltage withstand test.Other objects of the present invention are, in the DC motor of 4 pole 6 passes, as the noise counter plan produced in brush, when employing choking-winding and capacitor, projection beyond electrode can be do not formed in the flange of motor (flange) face (metal cap body (medal cover) surface), easily dielectric voltage withstand test can be carried out.
Solve the technological means of problem
Reach the invention is characterized in of above-mentioned purpose, a kind of DC motor, its inner circumferential side at yoke configuration permanent magnet, the armature with coil and laminate steel is set opposedly with this permanent magnet, possesses the brush with described armature conducting, be provided with: the brush plate having installed the insulator to the brush carrier that described brush keeps, and to combine with this brush plate and to cover the metal cap body of the conductivity of the patent part side of described yoke, the one side side relative with described armature at described brush plate arranges choking-winding, in the groove being arranged at the one side side that described brush plate and described metal cap body combine, capacitor is set, described capacitor is set to, the wire of side is electrically connected with described choking-winding, the wire of opposite side can be electrically connected with described metallic plate after dielectric voltage withstand test.
Further, in this feature, described armature can be configured to 4 holes, pole 6, and described brush is configured 2 with the almost spacing of 90 degree on described brush plate.Described choking-winding also can between described brush, and the side that interval, direction is wider is around configured with almost symmetrical form.In addition, described capacitor is preferably set to 2, and described capacitor and described choking-winding are configured to be clipped in described brush plate both sides.Near the described groove of the described capacitor of the collecting on described brush plate, can projection be set, by described capacitor with conductor configurations s in this projection of described metal cap body connection side, and the shape of described wire is set to crank shape.Further, can by the insertion terminal configuration that is electrically connected with described choking-winding described capacitor between described brush plate and described metal cap body.
Invention effect
According to the present invention, in vehicle-mounted DC motor, in the one side side opposed with metal cap body of brush plate, groove is set, in metal cap body, the hole corresponding with this groove is set, the capacitor of electromagnetic noise countermeasure is accommodated in described groove, because the wire of the side of capacitor is electrically connected with the choking-winding of the rear side being configured in brush plate, the wire of the opposite side of capacitor is electrically connected with metal cap body after dielectric voltage withstand test, therefore when not making motor shape become large, just can easily and high reliability carry out DC motor dielectric voltage withstand test.In addition, in the DC motor of 4 pole 6 passes, can not form the projection beyond electrode on the metal cap body surface of motor, and easily can carry out dielectric voltage withstand test.
Accompanying drawing explanation
Fig. 1 is the stereoscopic figure of an embodiment of the DC motor relevant with the present invention.
Fig. 2 is the longitdinal cross-section diagram of the DC motor shown in Fig. 1.
Fig. 3 is the stereogram of the metal cap body that the DC motor shown in Fig. 1 possesses.
Fig. 4 is the stereogram of the brush plate that the DC motor shown in Fig. 1 possesses.
Fig. 5 is the vertical view of the brush plate shown in Fig. 4.
Fig. 6 is the rearview of the brush plate shown in Fig. 4.
Fig. 7 is the rearview of the brush plate shown in Fig. 4, is to load each parts figure in the past.
Fig. 8 is the stereogram of the brush carrier being loaded in the brush plate shown in Fig. 4.
Fig. 9 is the stereogram of the insertion terminal being loaded in the brush plate shown in Fig. 4.
Figure 10 is the stereogram of the capacitor being loaded in the brush plate shown in Fig. 4.
Symbol description:
11 ... flange, 11a ... installing hole, 12 ... shell (yoke), 13 ... rear bearings maintaining part, 14 ~ 14b ... anterior (front) bearing cage, 16 ... permanent magnet, 17 ... brush plate, 17b ... spring abutment part, 17c ... coil maintenance projection, 17d coil maintenance groove, 17e ... brush carrier groove, 17f goes between (pigtail) stopping place, 17g ... winding wire support portion groove, 18 ... metal cap body, 21 ... brush, 21b ... lead-in wire, 22 ... commutator, 24 ... terminal, 32 ... rotating shaft, 33 ... anterior (rolling) bearing, 34 ... rear portion (rolling) bearing, 35 ... gear, 41 ... laminate steel, 42 ... winding, 43 ... armature, 50 ... capacitor, 51 capacitor main bodies, 52 ... wire, 52a ... horizontal part, 52b ... bend, 52c ... horizontal part, 53 ... wire, 55 ... choking-winding, 55a, 55b ... wire, 56 ... brush carrier, 56a coil connecting portion, 56b ... wire connections, 57 ... brush spring, 59 ... bearing retaining hole, 61 ... capacitor hole, 62 ... terminal hole, 65 ... brush plate fixing hole, 71 terminal projections, 71a ... attached nicked terminal retention portion, 71b ... basal part, 71c ... otch, 72 ... capacitor projection, 73 ... metal cap body fastener, 75 capacitor holding units, 75a coil link hole, 75b ... wire retention groove, 75c ... capacitor main body retention groove, 76 wire maintenance projections, 80 ... insert terminal, 81 ... connecting portion, 82 ... winding wire support portion, 83 ... insertion section, 91 brushes keep case portion, 92 ... coil connecting portion, 92a coil web portion, 94 ... wire connections, 100 ... DC motor.
Embodiment
Below, the embodiment of accompanying drawing to the DC motor relevant with the present invention is used to be described.Fig. 1 is the stereogram of an embodiment of DC motor 100, is the figure that the connection side with slave unit is set to upper surface represent.Fig. 2 is the longitdinal cross-section diagram of the DC motor 100 shown in Fig. 1.
The DC motor 100 relevant with the present embodiment is DC motors of subsidiary brush.Iron plate being formed as the inner wall part of the shell (yoke) 12 of roughly cup-shaped being waited by punching press (press) processing, forming the magnetic field of this DC motor 100 and the permanent magnet 16 being configured to ring-type is fixed.Shell 12 and permanent magnet 16 form the stator of DC motor 100.
Armature 43 is configured to relative with permanent magnet 16.Armature 43 has: laminate steel (iron core (core)) 41, and it is carried out lamination by the silicon steel plate etc. to the demoulding and formed; With winding 42, its be wrapped in be formed at this laminate steel 41 salient pole on.In addition, the outer surface side of laminate steel 41 is shaping by mould (mold) resin, guarantees insulating properties.
The laminate steel 41 that winding 42 is wound around, to be installed in rotating shaft 32, the slave unit such as the pump of the end side that is installed in DC motor 100 along with the rotation of rotating shaft 32 carries out rotary actuation.An end of rotating shaft 32 is supported by rear portion rolling bearing 34, this rear portion rolling bearing 34 be in rear portion (rear) bearing cage 13 keep, central portion in the bottom (left part in Fig. 2) of shell 12 formed by punch process etc.In the present embodiment, rear bearings maintaining part 13 forms protruding shape in the inner side of shell 12.In the present embodiment, gear (gear) 35 is installed in the tip side of rotating shaft 32, for slowing down to slave unit or accelerating to drive.
In order to power to winding 42, commutator 22 is installed in rotating shaft 32.2 brushes 21 are loaded in commutator 22 by helical spring 57.Brush 21 is electrically connected with brush plate 17.On the brush plate 17 not installing brush 21, choking-winding 55 is configured.As described in detail below, choking-winding 55, by end, is electrically connected with the wire 53 of capacitor 50 of the opposing face being installed in brush plate 17.Capacitor 50 is made up of the wire 52 of the side be electrically connected with metal cap body 18, the wire 51 be electrically connected with choking-winding 55 and capacitor main body 50.
The peristome of shell 12 is covered by metal cap body 18, and metal cap body 18 engages with brush plate 17.At the central portion of brush plate 17 and metal cap body 18, in order to keep anterior rolling bearing 33 to form peristome 59 (with reference to Fig. 7), this peristome 59 is connected with anterior bearing cage 14.In addition, the anterior bearing cage 14a of metal cap body 18, together with the anterior bearing cage 14b (with reference to Fig. 4) being formed at brush plate 17, keeps the anterior rolling bearing 33 being fixed on rotating shaft 32.Form flange 11 at the peripheral part of shell 12, bolt (bolt) is inserted the installing hole 11a being formed at the slave unit of flange 11, thus DC motor 100 is installed on slave unit.
In figure 3, represented by stereogram and punch process is carried out to steel plate etc. and the vertical view of the conductive metal lid 18 made.As shown in Figure 3, form multiple hole 65, groove 61 in the upper surface side of metal cap body 18, be maintained at the capacitor 50 of brush plate 17 in the configuration of the downside of the groove 61 of elongated hole-shape.Hole 65 is for locating brush plate 17 and being fixed on metal cap body 18, and after making the projection 73 (with reference to Fig. 4) being formed in brush plate 17 be embedded in this hole 65, heating makes the bowing of brush plate 17, thus is fixed on metal cap body 18.Groove 62 is terminal 24 grooves for powering to DC motor 100, is arranged on the position that peripheral direction is almost symmetrical.
Next, Fig. 4 to Fig. 7 is used to be described brush plate 17 embodiment.First, the state of the upper surface of brush plate 17 is described.Fig. 4 is the stereogram of brush plate 17, is the figure one side relative with metal cap body 18 being set to upper surface.Fig. 5 is the vertical view of Fig. 4.
The brush plate 17 of the present embodiment is insulator, is waited and be produced by injection moulding (injection) processing of resin.The upper surface side of brush plate 17 becomes the shape corresponding to the multiple holes being arranged on metal cap body 18, groove.That is, the terminal projection 71 be made up of terminal retention portion 71a and the basal part 71b of subsidiary otch (slit) is arranged on axisymmetric 2 positions, wherein, this attached nicked terminal retention portion 71a is formed as the groove for the rectangular shape making terminal 24 through, this attached nicked terminal retention portion 71a of the aspect ratio of this basal part 71b is low and be formed in around attached nicked terminal retention portion 71a, even if also ensure that insulation distance when metal cap body 18 is mounted.
In addition, in order to guarantee the engaging with metal cap body 18 as described above, circular projection 73 is set in multiple places of upper surface.Further, in order to stably keeping capacitor 50, by capacitor holding unit 75c, coil link hole 75a and wire retention groove 75b, capacitor holding unit 75 is formed.Wherein, this capacitor holding unit 75c has the dark groove depth of the size of ratio capacitance device main body 51, this coil link hole 75a passes wire 53 in order to the electrical connection with choking-winding 55, and this wire retention groove 75b is arranged on the border between coil link hole 75a and capacitor holding unit 78c.The periphery of capacitor holding unit 75 be formed in the capacitor hole 61 of metal cap body 18 accordingly, form the capacitor projection 72 on the projection limit as oblong shape.In Figure 5, they for benchmark, are configured to general axial symmetry in the downside of this line with the line between connection terminal 24 use projection 71.
Near capacitor projection 72 and the wire 52 of capacitor 50 is placed on the part of upper surface, be formed in the wire maintenance projection 76 that almost vertical direction, the direction that extends with wire 52 extends.Wire maintenance projection 76 overlaps with the projection of the correspondence position being arranged on metal cap body 18, is arranged in use in when being connected with metal cap body 18 by spot welding etc. by wire 52, the heat of generation is concentrated and welding operation is improved.
Next, the state of Fig. 6 and Fig. 7 to the back side of brush plate 17 is used to be described.Fig. 6 is the rearview of Fig. 4, is the rearview that the figure being loaded with various parts, Fig. 7 are similarly Fig. 4, is the figure of brush plate 17 entirety of loading before various parts.
The otch 71c that terminal 24 runs through is formed in the left and right sides of the bearing retaining hole 59 of central authorities.With this otch 71c for benchmark, upside approximately arranges the groove 17e of the brush carrier locking of explained later axisymmetrically in the figure 7.Brush carrier groove 17e is the groove with the degree of depth of the thickness of slab same degree of brush carrier 56, under the state having engaged brush carrier 17e, is positioned at the height and position identical with the surface of brush plate 17.At brush carrier with in groove 17e and near the otch 71c of left and right directions center side and terminal 24, form projection 17h.At this projection 17h, the hole being formed at brush carrier 56 is engaged, and brush carrier 56 is fixed on brush plate 17.At the outer circumferential side of brush carrier with groove 17e, be arranged on the upper coil maintenance projection 17b extended of direction of principal axis (on front side of the paper in Fig. 6,7).Coil maintenance projection 17b, in order to when making brush 21 contact commutator 22, keeping the helical spring obtaining active force and arranging.
Brush carrier 56 is represented with stereogram in Fig. 8.The downside of figure is outer circumferential side, and the upside of Fig. 8 is inner circumferential side, namely the side that abuts with commutator 22 of brush 21.Brush carrier 56 has: the brush of rectangle keeps case portion 91, and it accommodates brush; Lead-in wire (pigtail) connecting portion 94, it is positioned at outer circumferential side; With coil connecting portion 92, it is positioned at inner circumferential side.Coil connecting portion 92 has the coil web portion 92a bending to right angle, and this coil web portion 92a is connected with the wire 55a of choking-winding 55.Hole 94a, 92b is formed respectively at wire connections 94 and coil connecting portion 92, chimeric with the projection 17h being formed at brush plate 17.Further, be out of shape by heating brush plate 17, projection 17h, brush carrier 56 is fixed in brush plate 17.Keep a side in case portion 91 at the brush of brush carrier 56, formation groove (not shown) is arranged on brush 21 lead-in wire 21b to make the wearing and tearing along with brush 21 cause can move.
Cut in the figure 7 on the downside of 71c, form OBL coil maintenance groove 17c.When choking-winding 55 is remained on inside, coil maintenance groove by under scrape out the winding 42 making choking-winding 55 not disturb opposed armature 43.On 3 limits of this coil maintenance around groove 17d, coil maintenance projection 17c is set up, and when DC motor 100 being loaded in automobile etc., prevents choking-winding 55 from vibrating, mobile.
In Fig. 7 shown in shade (hatching) is the front face side (inboard in Fig. 7) of brush plate 17, is namely configured in the insertion terminal 80 between metal cap body 18.The upper surface of the brush plate 17 except the part except configuring 2 brush carriers 56, is configured with 2 axisymmetrically and inserts terminal 80, and be positioned at the downside of Fig. 7 with very little gap.This insertion terminal 80 is inserted into and is molded over brush plate 17, has been maintained in mould when hot swaging.
As shown in Figure 9, terminal 80 is inserted in the shape bent by copper coin, an end, be bent to form the terminal 24 of power supply input, in another end, bend to the direction contrary with terminal 24, form the winding wire support portion 82 that the wire 55b of choking-winding 55 is kept.In addition, near coil wire support portion 82, form the connecting portion 81 be connected with the wire 53 of the side of capacitor 50.Between connecting portion 81 and terminal 24, as shown in Figure 7, the plane bent is formed.
At the coil maintenance periphery of groove 17d of the rear side of brush plate 17, near the part namely not forming coil maintenance projection 17c, form groove 17g.At this groove 17g, run through the support portion 82 that the wire 55b being formed at the above-mentioned choking-winding 55 inserting terminal 80 is supported.Near groove 17g, in order to be electrically connected with the wire 53 of capacitor 50 by the wire of choking-winding 55, form hole 17g and connected groove that insertion terminal 80 is exposed.By the rear side of hole 17g is connected with the wire 55b of choking-winding 55, the face side of hole 17g is connected with the wire 53 of capacitor 50, thus both are electrically connected.
Use Figure 10, the connection of capacitor 50 is described.With the wire 53 inserting the side that the connecting portion 81 of terminal 80 is electrically connected with almost straight stateful connection after, capacitor 50 is remained on the groove 61 of the face side being arranged at brush plate 17 once.Assemble DC motor 100 with this state, apply the voltage higher than voltage normally used between terminal 24, implement dielectric voltage withstand test.Thus, defective insulation product are extracted.Now, owing to forming crank portion 52b between horizontal part 52a, 52c, the opposite side wire 52 contacting metal lid 18 of capacitor 50 therefore can be prevented and conducting.
After dielectric voltage withstand test, in order to form the RC circuit as normally used squelch circuit, by spot welding etc., wire 52 is welded in metal cap body 18.Here, the height and position due to the wire 52 by capacitor 50 is set to lower than the flange surface of metal cap body 18, therefore avoids the direction of principal axis length of DC motor 100 by increasing capacitor 50.
As described above, according to the present invention, with the almost interval of 90 degree, brush is configured at the rear side of brush plate, the mode imbedding a part according to the wider side between this brush configures a pair choking-winding, further, the mode imbedded according to the face side at brush plate to configure capacitor, because the wire of its side is electrically connected with choking-winding, therefore DC motor can not be made to maximize, just can form the RC circuit that the noise produced by brush is reduced.
In addition, due to not connect the state of the opposite side terminal of capacitor to implement dielectric voltage withstand test, therefore, it is possible to prevent the electric charge be connected to attached by the result of capacitor from flowing into capacitor, the generation of the state of affairs of Leakage Current can be erroneously detected as.After Insulation Test, owing to there is no the built-in function of DC motor, as long as therefore the terminal of capacitor is connected with metal cap body in outside, handling ease and procedure of processing is few.
Claims (6)
1. a DC motor, its inner circumferential side at yoke configuration permanent magnet, arranges the armature with winding and laminate steel opposedly with this permanent magnet, and possesses the brush with described armature conducting,
Described DC motor is provided with: installed the brush plate of the insulator of the brush carrier that described brush keeps and the metal cap body of conductivity combining the patent part side covering described yoke with this brush plate, the one side side relative with described armature at described brush plate arranges choking-winding, in the groove being arranged at the one side side that described brush plate and described metal cap body combine, capacitor is set, described capacitor is set to: the wire of side is electrically connected with described choking-winding, and the wire of opposite side can be electrically connected with described metallic plate after dielectric voltage withstand test.
2. DC motor according to claim 1, is characterized in that,
Described armature is configured to 4 holes, pole 6, and described brush is configured 2 with the almost spacing of 90 degree on described brush plate.
3. DC motor according to claim 2, is characterized in that,
Described choking-winding, between described brush and the side that interval, direction is wider be around configured with almost symmetrical form.
4. the DC motor according to claim 2 or 3, is characterized in that,
Described capacitor is set to 2, and described capacitor and described choking-winding clip described brush plate and configure.
5. the DC motor according to any one of Claims 1-4, is characterized in that,
Near the described groove of the described capacitor of the collecting on described brush plate, projection is set, by described capacitor with the conductor configurations of described metal cap body connection side in this projection, and the shape of described wire is set to crank shape.
6. the DC motor according to any one of claim 1 to 5, is characterized in that,
By the insertion terminal configuration that is electrically connected with described choking-winding described capacitor between described brush plate and described metal cap body.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013201019A JP6193071B2 (en) | 2013-09-27 | 2013-09-27 | DC motor |
| JP2013-201019 | 2013-09-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104518630A true CN104518630A (en) | 2015-04-15 |
| CN104518630B CN104518630B (en) | 2018-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410026076.1A Expired - Fee Related CN104518630B (en) | 2013-09-27 | 2014-01-21 | DC motors |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6193071B2 (en) |
| CN (1) | CN104518630B (en) |
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| WO2022194081A1 (en) * | 2021-03-16 | 2022-09-22 | 浙江三花汽车零部件有限公司 | Fluid drive device |
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| KR102511767B1 (en) * | 2016-01-25 | 2023-03-20 | 엘지이노텍 주식회사 | Cover assembly for motor motor and vehicle having the same |
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| KR102547571B1 (en) * | 2018-07-26 | 2023-06-26 | 엘지이노텍 주식회사 | Motor |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0258677A1 (en) * | 1986-08-30 | 1988-03-09 | SWF Auto-Electric GmbH | Carrier plate for installing in an electric motor |
| JPH09107651A (en) * | 1995-10-11 | 1997-04-22 | Asmo Co Ltd | Brush holder equipment |
| US20060103259A1 (en) * | 2000-12-21 | 2006-05-18 | Valeo Equipements Electriques Moteur | Brush-holder assembly for electric machine |
| CN1918776A (en) * | 2004-02-10 | 2007-02-21 | 西门子公司 | Brush system for an electric drive unit |
| US20080284272A1 (en) * | 2007-05-14 | 2008-11-20 | Asmo Co., Ltd. | Electric motor |
| CN102412690A (en) * | 2010-09-22 | 2012-04-11 | 马渊马达株式会社 | Dc Electric Motor |
| CN202231567U (en) * | 2011-09-29 | 2012-05-23 | 浙江松田汽车电机系统有限公司 | Brush holder assembly of glass lifter motor |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000023434A (en) * | 1998-07-03 | 2000-01-21 | Kokusan Denki Co Ltd | Dc motor with brush |
| WO2001039354A1 (en) * | 1999-11-25 | 2001-05-31 | Mabuchi Motor Co., Ltd. | Small-sized motor |
| JP2012044814A (en) * | 2010-08-20 | 2012-03-01 | Asmo Co Ltd | Motor device and pump device |
| JP5682301B2 (en) * | 2010-12-24 | 2015-03-11 | アイシン精機株式会社 | Manufacturing method of rotating electrical machine |
-
2013
- 2013-09-27 JP JP2013201019A patent/JP6193071B2/en not_active Expired - Fee Related
-
2014
- 2014-01-21 CN CN201410026076.1A patent/CN104518630B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0258677A1 (en) * | 1986-08-30 | 1988-03-09 | SWF Auto-Electric GmbH | Carrier plate for installing in an electric motor |
| JPH09107651A (en) * | 1995-10-11 | 1997-04-22 | Asmo Co Ltd | Brush holder equipment |
| US20060103259A1 (en) * | 2000-12-21 | 2006-05-18 | Valeo Equipements Electriques Moteur | Brush-holder assembly for electric machine |
| CN1918776A (en) * | 2004-02-10 | 2007-02-21 | 西门子公司 | Brush system for an electric drive unit |
| US20080284272A1 (en) * | 2007-05-14 | 2008-11-20 | Asmo Co., Ltd. | Electric motor |
| CN102412690A (en) * | 2010-09-22 | 2012-04-11 | 马渊马达株式会社 | Dc Electric Motor |
| CN202231567U (en) * | 2011-09-29 | 2012-05-23 | 浙江松田汽车电机系统有限公司 | Brush holder assembly of glass lifter motor |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108370200A (en) * | 2015-12-25 | 2018-08-03 | 日立汽车系统工程株式会社 | Brush carrier and the dc motor for having the brush carrier |
| CN108370200B (en) * | 2015-12-25 | 2020-05-01 | 日立汽车系统工程株式会社 | Brush holder and DC motor having the same |
| CN110356466A (en) * | 2018-04-10 | 2019-10-22 | 株式会社电装 | Driving equipment |
| CN110356466B (en) * | 2018-04-10 | 2023-04-14 | 株式会社电装 | Drive device |
| WO2022194081A1 (en) * | 2021-03-16 | 2022-09-22 | 浙江三花汽车零部件有限公司 | Fluid drive device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104518630B (en) | 2018-04-24 |
| JP6193071B2 (en) | 2017-09-06 |
| JP2015070658A (en) | 2015-04-13 |
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